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Grade: 12th pass
        How does Young`s modulus change with rise in temperature?  A load of 2kg produces an extension of 1mm in wire of 3mm in length and 1mm in diameter. Calculate the Young`s modulus of elasticity of the wire?
one year ago

Answers : (1)

Vikas TU
6869 Points
							
stress =  Force /Area of contact => 20/(pi*0.5*0.5) N/mm^2
strain = delta(l)/l = > 1/3
Young’s mudulus = stress/strain
Hence,
Y =  20*3/(pi*0.5*0.5) = > 76.43312    N/mm^2
one year ago
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